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performs full-text search in PDF files (title, abstract, authors,
materials and methods, results, conclusion, bibliographies…). With
FreeFullPDF, you
can easily and quickly find the scientific information you want through
more than 80 million PDF files.
The OR operator
FreeFullPDF
's default behavior is to consider all the words in a search. If you
want to specifically allow either one of several words, you can use the
OR operator.
Example:
DNA sequencing OR sequencer
Terms
you want to exclude (-)
Attaching
a minus sign immediately before a word indicates that you do not want
pages that contain this word to appear in your results. The minus sign
should appear immediately before the word and should be preceded with a
space. The - sign can be used to exclude more than just words.
Example:
DNA sequencing -proteins -peptides
Phrase search
("")
By
putting double quotes around a set of words, you are telling
FreeFullPDF to consider the exact words in that exact order without any
change.
Example:
"DNA Sequencing by enzymatic method"
Fill
in the blanks (*)
The
*, or wildcard, is a little-known feature that can be very powerful. If
you include * within a query, it tells FreeFullPDF to try to treat the
star as a placeholder for any unknown term(s) and then find the best
matches.
Example:
"DNA Sequencing by * method" will give you DNA sequencing by dideoxy
method, DNA sequencing by the Sanger method, DNA sequencing by
ligation-mediated PCR method, DNA sequencing by hybridization method …
Search
in title
If
you include [intitle:] in your query, FreeFullPDF will restrict the
results to documents containing that word in the title tag. If you want
to search for more than one keyword use "allintitle". If you start a
query with [allintitle:] FreeFullPDF will search only those pages with
all of the query words with in the title tag.
Example:
allintitle:DNA sequencing
Scientific
Synonyms
Users' search
queries are automatically expanded with synonyms/acronyms.
Example:
Search query "DNA" has the following equivalent alternatives:
"deoxyribonucleic acid”, "desoxyribonucleic acid " or "ADN"
Databases
At present, about 15.000 sources
of free articles (open access journals, open archives...) are indexed in
FreeFullPDF database.
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